TY  - BOOK
AU  - Phillips,Sam
TI  - 530 amazing math puzzle
SN  - 9788172454821
U1  - 793.74 
PY  - 2017///]
CY  - New Delhi
PB  - Goodwill Publishing House.
KW  - Mathematical recreations
KW  - Number games
N1  - Primary; 700-799; 793.74
ER  -